By Freud 100 years ago : exhilaration and lasting euphoria, an increase of self control, a greater capability for work, long-lasting mental or physical performance without fatigue, and complete elimination of the need for food and sleep.By present day users: creates “perfect illusion”, person thinks he is more competent, smarter, sexier, vigilant, masterful, confident, productive, and full of energy.Thus they say cocaine is ego food.